CAJ | 학술논문

为了研究药型结构对发射药燃速测试结果的影响，以高能硝胺发射药为研究对象，采用密闭爆发器燃烧实验和数据处理的分析方法，研究了4种药型及其不同内孔长径比发射药的燃速特性及其变化规律；采用中止燃烧实验研究了发射药内孔长径比对侵蚀燃烧的影响，并与太根发射药对比研究了燃速特性对侵蚀燃烧的影响关系。结果表明，多孔药的燃速压力指数明显小于单孔药，在内孔长径比相同的条件下，随着发射药内孔数量的增加，正比式燃速系数减小，燃速压力指数减小；在药型相同的条件下，随着内孔长径比增大，发射药侵蚀燃烧现象加剧，正比式燃速系数增大，燃速压力指数减小；燃速较高的发射药，侵蚀燃烧现象对燃速参数测试结果的影响更大。
위료연구약형결구대발사약연속측시결과적영향，이고능초알발사약위연구대상，채용밀폐폭발기연소실험화수거처리적분석방법，연구료4충약형급기불동내공장경비발사약적연속특성급기변화규률；채용중지연소실험연구료발사약내공장경비대침식연소적영향，병여태근발사약대비연구료연속특성대침식연소적영향관계。결과표명，다공약적연속압력지수명현소우단공약，재내공장경비상동적조건하，수착발사약내공수량적증가，정비식연속계수감소，연속압력지수감소；재약형상동적조건하，수착내공장경비증대，발사약침식연소현상가극，정비식연속계수증대，연속압력지수감소；연속교고적발사약，침식연소현상대연속삼수측시결과적영향경대。
In order to study the influence of charge structure on the test results of the burning rate of propellants,high-energy nitramine propellants was taken as study obj ect.By using closed bomb fired-test and data-treatment methods,the burning rate of propellants of four type structures and different inner hole aspect ratio of the burning rate and its variation character were researched. Using intermission burning test,the influence of the inner hole aspect ratio of propellant on erosive burning was studied.Compared with TEGN propellant,the influence of the burning rate on erosive burning was investigated.Results show that,the burning rate pressure exponent of multiperforated propellant is significantly less than that of the cylindrical monoperforated grain;under the same inner hole aspect ratio condition,the proportional burning rate coefficient u1 decreases with the increase of inner holes of propellants,and the burning rate pressure exponent n decreases.Under the same charge structure condition,propellant erosive burning intensifies with increase of the inner hole aspect ratio,and the proportional burning rate coefficient u1 increases, and the burning rate pressure exponent n decreases.The higher the burning-rate of propellant,the more significant the impact of erosive combustion on burning rate parameters.